[ Version ( since = "2.60" ) ]
public abstract unowned string? get_negotiated_protocol ()
Gets the name of the application-layer protocol negotiated during the handshake.
If the peer did not use the ALPN extension, or did not advertise a protocol that matched one of this's protocols, or the TLS backend does not support ALPN, then this will be null. See set_advertised_protocols.
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the negotiated protocol, or null |